Mark the letter A, B, C, or D on...

Câu hỏi: Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
“How long have you been in this job?” She asked him.

A. She asked him how long he has been in that job.

B. She asked him how long has he been in that job.

C. She asked him how long he had been in that job.

D. She asked him how long had he been in that job.